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-rw-r--r--init/initramfs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/init/initramfs.c b/init/initramfs.c
index d28c1094d7e5..85f04037ade1 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -182,6 +182,10 @@ static int __init do_collect(void)
static int __init do_header(void)
{
+ if (memcmp(collected, "070707", 6)==0) {
+ error("incorrect cpio method used: use -H newc option");
+ return 1;
+ }
if (memcmp(collected, "070701", 6)) {
error("no cpio magic");
return 1;